--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/js/ScriptCallStack.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2008, Google Inc. All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef ScriptCallStack_h
+#define ScriptCallStack_h
+
+#include "ScriptArray.h"
+#include "ScriptCallFrame.h"
+#include "ScriptState.h"
+#include "ScriptString.h"
+#include <wtf/Noncopyable.h>
+#include <wtf/RefPtr.h>
+
+namespace JSC {
+    class ExecState;
+    class JSValue;
+}
+
+namespace WebCore {
+
+    class InspectorArray;
+
+    class ScriptCallStack : public Noncopyable {
+    public:
+        ScriptCallStack(JSC::ExecState*, unsigned skipArgumentCount = 0);
+        ~ScriptCallStack();
+
+        ScriptState* state() const { return m_exec; }
+        ScriptState* globalState() const { return m_exec->lexicalGlobalObject()->globalExec(); }
+        // frame retrieval methods
+        const ScriptCallFrame &at(unsigned);
+        unsigned size();
+        static bool stackTrace(int, const RefPtr<InspectorArray>&);
+
+    private:
+        void initialize();
+        bool m_initialized;
+
+        JSC::ExecState* m_exec;
+        Vector<ScriptCallFrame> m_frames;
+        JSC::JSFunction* m_caller;
+    };
+
+} // namespace WebCore
+
+#endif // ScriptCallStack_h